| Seaham to Quarteira | 1,268.67 mi (2,041.73 km) |
| Seaham to Queluz | 1,171.35 mi (1,885.10 km) |
| Seaham to Reguengos de Monsaraz | 1,171.05 mi (1,884.62 km) |
| Seaham to Resende | 996.08 mi (1,603.03 km) |
| Seaham to Ribeira Brava | 1,710.94 mi (2,753.49 km) |
| Seaham to Ribeira Grande | 1,631.39 mi (2,625.46 km) |
| Seaham to Rio de Mouro | 1,171.16 mi (1,884.80 km) |
| Seaham to Rio Maior | 1,127.80 mi (1,815.02 km) |
| Seaham to Rio Tinto | 999.93 mi (1,609.23 km) |
| Seaham to Sabugal | 1,035.44 mi (1,666.38 km) |
| Seaham to Sacavem | 1,166.14 mi (1,876.72 km) |
| Seaham to Salvaterra de Magos | 1,146.75 mi (1,845.51 km) |
| Seaham to Santa Comba Dao | 1,045.24 mi (1,682.15 km) |
| Seaham to Santa Cruz | 1,705.56 mi (2,744.83 km) |
| Seaham to Santa Iria da Azoia | 1,162.43 mi (1,870.75 km) |
